Simon Pietro Romano

Learn More
Web Real-Time Communication (WebRTC) is an upcoming standard that aims to enable real-time communication among Web browsers in a peer-to-peer fashion. The IETF RTCWeb and W3C WebRTC working groups are jointly defining both the APIs and the underlying communication protocols for setting up and managing a reliable communication channel between any pair of(More)
The continuous growth of wireless networks calls for more and more sophisticated solutions for their security. In particular, mechanisms for limiting effects of routing protocol attacks are becoming a mandatory requirement: black-hole and gray-hole attacks can in fact seriously compromise the performance of a critical infrastructure like a Wireless Mesh(More)
In this paper, we face the challenging issue of defining and implementing an effective law for load balancing in Content Delivery Networks (CDNs). We base our proposal on a formal study of a CDN system, carried out through the exploitation of a fluid flow model characterization of the network of servers. Starting from such characterization, we derive and(More)
In this article we present a thorough performance analysis of an actual implementation of a distributed conferencing framework compliant with the IP multimedia core network subsystem specification. The subject of our experimental campaign has been an architecture implemented by exploiting existing achievements in the field of conferencing. The work(More)
This paper deals with the design and implementation of Janus, a general purpose, open source WebRTC gateway. Details will be provided on the architectural choices we took for Janus, as well as on the APIs we made available to extend and make use of it. Examples of how the gateway can be used for complex WebRTC applications are presented, together with some(More)
In this paper we present the results of a study we recently conducted by analyzing a large data set of VoIP Call Detail Records (CDRs), provided by an Italian telecom operator. The objectives of this study were twofold: (i) first, to provide a representation of users behavior, as well as of their mutual interaction and communication patterns, allowing to(More)
Premium IP networks provide users with a portfolio of services, thanks to their intrinsic capability to perform a service creation process while relying on a QoSenabled infrastructure. The most natural interface between users and Premium IP networks is represented by the Service Level Agreement (SLA). In order to allow an effective exploitation of such(More)